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16988101 — PLUG,EXPANSION

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

16988101: PLUG,EXPANSION.

The PLUG,EXPANSION is a the manufacturer industrial component. Key specifications include height: 4.76 MILLIMETERS MINIMUM AND 5.24 MILLIMETERS MAXIMUM MM, material: STEEL, outside_diameter: 16.150 MILLIMETERS MINIMUM AND 16.220 MILLIMETERS MAXIMUM MM, special_features: COATING:FE/ZN 12 IV;STANDARD 18-1102, style_designator: CUP, material_thickness: 1.0 MILLIMETERS NOMINAL MM. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-703-6595, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
16988101
NSN: 5340-01-703-6595
FSC: 5340 — Hardware, Commercial
CAGE: A4249 — IVECO DEFENCE VEHICLES S.P.A. (ITA)
SPECIFICATIONS
height4.76 MILLIMETERS MINIMUM AND 5.24 MILLIMETERS MAXIMUM MM
materialSTEEL
outside_diameter16.150 MILLIMETERS MINIMUM AND 16.220 MILLIMETERS MAXIMUM MM
special_featuresCOATING:FE/ZN 12 IV;STANDARD 18-1102
style_designatorCUP
material_thickness1.0 MILLIMETERS NOMINAL MM
end_item_identification2355-01-669-0331
specification/standard_dataA4249-11-4721 MANUFACTURERS STANDARD
NSN5340-01-703-6595
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 16988101 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
OUTSIDE DIAMETER: 16.150 MILLIMETERS MINIMUM AND 16.220 MILLIMETERS MAXIMUM MM
•
STYLE DESIGNATOR: CUP
•
MATERIAL THICKNESS: 1.0 MILLIMETERS NOMINAL MM
•
SPECIFICATION/STANDARD DATA: A4249-11-4721 MANUFACTURERS STANDARD
•
HEIGHT: 4.76 MILLIMETERS MINIMUM AND 5.24 MILLIMETERS MAXIMUM MM
•
MATERIAL: STEEL
TECHNICAL CHARACTERISTICS
OUTSIDE DIAMETER16.150 MILLIMETERS MINIMUM AND 16.220 MILLIMETERS MAXIMUM MM
STYLE DESIGNATORCUP
MATERIAL THICKNESS1.0 MILLIMETERS NOMINAL MM
SPECIFICATION/STANDARD DATAA4249-11-4721 MANUFACTURERS STANDARD
HEIGHT4.76 MILLIMETERS MINIMUM AND 5.24 MILLIMETERS MAXIMUM MM
SPECIAL FEATURESCOATING:FE/ZN 12 IV;STANDARD 18-1102
END ITEM IDENTIFICATION2355-01-669-0331
MATERIALSTEEL
OTHER ITEMS IN FSC 5340 — Hardware, Commercial
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5340-00-000-0068 5340-00-000-0132 5340-00-000-8150 5340-00-001-1251 5340-00-001-1264 5340-00-001-1265 5340-00-001-1266 5340-00-001-1275
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 16988101?
16988101 is a PLUG,EXPANSION.
What is the NSN for 16988101?
16988101 is cataloged in the U.S. Government catalog under NSN 5340-01-703-6595. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.